cat back exhausts do not include the cat, that you will want to keep. a kit for a 98 lx (d16y7) will include a mid pipe (also known as center muffeler) and axle back muffeler. some have 3 pieces. check out
www.nopi.com,
www.modacar.com and you could try good ol ebay. my suggestion. get stainless steel, that way you will never have to replace that m'r f'r again.